Pfizer

Open enrollment with an early-phase pipeline tilt

According to ClinicalTrials.gov-derived indexes, Pfizer sits in the top decile of US sponsors by registered trial count (#7 of 15,742 sponsors by registered trial count).

1,845 total trials 106 currently recruiting 1335 completed early-phase tilt top decile by trial count

Pfizer: 1,845 sponsored US clinical trials, 106 recruiting.

Pfizer sponsors 1,845 registered US clinical trials on ClinicalTrials.gov, 106 of them currently recruiting, and 1,335 completed. 504 of these trials are in Phase 3-4 (later-stage) and 1,173 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Healthy, with 44 trials.

Top-decile sponsor footprint

Pfizer ranks in the top decile of sponsors by registered trial count (#7 of 15,742 sponsors by registered trial count). Volume at this scale usually reflects a long institutional pipeline, read phase tilt and therapeutic areas below before treating it as current-year activity.

Trial completion reliability score

F 39/100

1,335 of 1,673 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (79.8%), vs. national p10 68.4% / p90 100% among 1,234 sponsors with at least 10 decided trials. Still-open trials (Recruiting, Active-not-recruiting, Not-yet-recruiting) are excluded since they have not reached an outcome yet.

Open and recent trials

1,845 total, page 17 of 37

TERMINATED Phase 2

A 6-Week Study To Determine The Safety And Effect Of An Investigational Drug Given With Canagliflozin In Adults With Type 2 Diabetes Mellitus Taking Metformin

NCT02053116

TERMINATED Phase 1

A Study To Evaluate The Safety And Effects On The Body Of An Investigational Drug Using An Endotoxin-Induced Inflammatory Response Model

NCT01965600

COMPLETED Phase 1

A Phase 1b Study Of Axitinib In Combination With Crizotinib In Patients With Advanced Solid Tumors

NCT01999972

COMPLETED Phase 3

A Study Of PF-05280014 [Trastuzumab-Pfizer] Or Herceptin® [Trastuzumab-EU] Plus Paclitaxel In HER2 Positive First Line Metastatic Breast Cancer Treatment (REFLECTIONS B327-02)

NCT01989676

COMPLETED Phase 3

Open-Label Extension Study Of Tofacitinib In Psoriatic Arthritis

NCT01976364

COMPLETED Phase 1

A Study To Observe Safety And Blood Concentrations Of PF-06649751 During And Following The Oral Administration Of Multiple Doses Of PF-06649751 In Healthy Adult Western and Japanese Volunteers

NCT02066909

COMPLETED Phase 2

A Study of ARRY-371797 in Patients With LMNA-Related Dilated Cardiomyopathy

NCT02057341

COMPLETED Phase 1

Study To Evaluate Safety And Tolerability Of Single And Multiple Ascending Doses Of PF- 06260414 In Healthy Western And Japanese Male Subjects

NCT02070939

TERMINATED Phase 1

A Study Of PF-05212384 Plus FOLFIRI Versus Bevacizumab Plus FOLFIRI In Metastatic Colorectal Cancer

NCT01937715

COMPLETED Phase 1

A Study To Investigate A Clostridium Difficile Vaccine In Healthy Adults Aged 50 To 85 Years, Who Will Each Receive 3 Doses Of Vaccine.

NCT02052726

COMPLETED Phase 3

Efficacy And Safety Of Tofacitinib In Psoriatic Arthritis: Comparator Study

NCT01877668

TERMINATED Phase 2

LGX818 for Patients With BRAFV600 Mutated Tumors

NCT01981187

COMPLETED Phase 1

A Study Of PF-06463922 An ALK/ROS1 Inhibitor In Patients With Advanced Non Small Cell Lung Cancer With Specific Molecular Alterations

NCT01970865

COMPLETED

Drug Concentration, Immunogenicity, and Efficacy Study in Patients With Rheumatoid Arthritis Currently Treated With Etanercept, Adalimumab, or Infliximab

NCT01981473

COMPLETED Phase 1

Relative Bioavailability Of Palbociclib (PD-0332991) Under Fed And Fasted Conditions

NCT02041273

COMPLETED Phase 1

A Pharmacokinetic Study Comparing PF-06439535 And Bevacizumab In Healthy Male Volunteers (REFLECTIONS B739-01)

NCT02031991

COMPLETED Phase 1

A Study Evaluating The Safety Of PF-05280014 And Trastuzumab In Healthy Male Volunteers (REFLECTIONS B327-06)

NCT02015156

TERMINATED Phase 1

A Study of the Safety, Tolerability, Pharmacokinetics, And Effects On Histamine-Induced Wheal Of PF-05180999 In Healthy Adults

NCT01981499

COMPLETED Phase 2

Efficacy and Safety Study of Enzalutamide in Combination With Exemestane in Patients With Advanced Breast Cancer

NCT02007512

TERMINATED Phase 2

A Phase 2, 2-Stage, 2-Cohort Study of Talazoparib (BMN 673), in Locally Advanced and/or Metastatic Breast Cancer Patients With BRCA Mutation (ABRAZO Study)

NCT02034916

COMPLETED Phase 3

Safety and Efficacy of Tafamidis in Patients With Transthyretin Cardiomyopathy

NCT01994889

TERMINATED Phase 2

PASS Study To Evaluate The Potential Of Zithromax To Cause Ocular Problems In Pediatric Patients

NCT01919996

COMPLETED Phase 1

Phase Ib/II Study of Efficacy and Safety of MEK162 and Panitumumab, in Adult mCRC Patients With Mutant or Wild-type RAS Tumors

NCT01927341

TERMINATED Phase 2

A Study Of PF-05212384 Plus Irinotecan Vs Cetuximab Plus Irinotecan In Patients With KRAS And NRAS Wild Type Metastatic Colorectal Cancer

NCT01925274

TERMINATED Phase 1

A Study Evaluating The PF-03084014 In Combination With Docetaxel In Patients With Advanced Breast Cancer

NCT01876251

COMPLETED Phase 1

A Phase I Trial to Investigate the Safety and Tolerability of PF-06649751

NCT01981694

COMPLETED Phase 1

A Study To Observe Safety And Blood Concentrations Of PF-06412562 During And Following The Oral Administration Of Multiple Doses Of PF-06412562 In Healthy Adult Volunteers

NCT01959594

COMPLETED Phase 1

A Study To Examine The Distribution Of PF-05212377 In The Brain Of Healthy Volunteer Subjects Using Positron Emission Tomography And A Radioactive Tracer Following Oral Administration Of One Dose Of PF-05212377

NCT02005991

COMPLETED Phase 3

5% Topical Ibuprofen (IBU) for Ankle Sprain

NCT01945034

COMPLETED Phase 2

A Study of Filanesib (ARRY-520) and Carfilzomib in Patients With Advanced Multiple Myeloma

NCT01989325

TERMINATED Phase 2

A Phase 2, Multi-Center Study To Compare The Efficacy And Safety Of A Chemokine CCR2/5 Receptor Antagonist With Ranibizumab In Adults With Diabetic Macular Edema

NCT01994291

COMPLETED Phase 3

Safety and Efficacy Study of Enzalutamide in Patients With Nonmetastatic Castration-Resistant Prostate Cancer

NCT02003924

COMPLETED Phase 3

Randomized Clinical Trial of Bococizumab (PF-04950615; RN316) in Subjects With Hyperlipidemia or Mixed Dyslipidemia at Risk of Cardiovascular Events

NCT01968967

TERMINATED Phase 3

The Evaluation of Bococizumab (PF-04950615; RN316) in Reducing the Occurrence of Major Cardiovascular Events in High Risk Subjects

NCT01975389

TERMINATED Phase 3

The Evaluation of Bococizumab (PF-04950615;RN316) in Reducing the Occurrence of Major Cardiovascular Events in High Risk Subjects

NCT01975376

COMPLETED Phase 3

A 52 Week Study To Assess The Use Of Bococizumab (PF-04950615; RN316) In Subjects With Heterozygous Familial Hypercholesterolemia

NCT01968980

COMPLETED Phase 4

Safety Study of Continued Enzalutamide Treatment In Prostate Cancer Patients

NCT01995513

COMPLETED Phase 3

A Study Evaluating Talazoparib (BMN 673), a PARP Inhibitor, in Advanced and/or Metastatic Breast Cancer Patients With BRCA Mutation (EMBRACA Study)

NCT01945775

COMPLETED Phase 2

MEK162 for Patients With RAS/RAF/MEK Activated Tumors

NCT01885195

COMPLETED Phase 1

A Study To Investigate The Drug-Drug Interaction Potential Of Rifampin OnThe Investigational Agent Palbociclib (PD-0332991)

NCT01953731

COMPLETED Phase 1

Study Of Two Dosing Regimens Of PF-04937319 Compared To An Approved Agent (Sitagliptin) In Patients With Type 2 Diabetes

NCT01933672

COMPLETED Phase 3

Randomized Clinical Trial Of Bococizumab (PF-04950615; RN316) In Subjects With Hyperlipidemia Or Mixed Dyslipidemia At Risk Of Cardiovascular Events

NCT01968954

TERMINATED Phase 2

An Outpatient Study Of The Efficacy, Safety, And Tolerability Of PF-02545920 In The Adjunctive Treatment Of Sub-Optimally Controlled Symptoms of Schizophrenia

NCT01939548

TERMINATED Phase 2

A Study To Evaluate The Efficacy And Safety of The Investigational Drug PF-03446962 (A Monoclonal Antibody With Antiangiogenic Features) In Combination With Best Supportive Care Versus Placebo Plus Best Supportive Care In Patients Affected By Recurrent Liver Cancer

NCT01911273

COMPLETED Phase 3

Palbociclib (PD-0332991) Combined With Fulvestrant In Hormone Receptor+ HER2-Negative Metastatic Breast Cancer After Endocrine Failure (PALOMA-3)

NCT01942135

COMPLETED Phase 3

Study Comparing Combination of LGX818 Plus MEK162 Versus Vemurafenib and LGX818 Monotherapy in BRAF Mutant Melanoma

NCT01909453

COMPLETED Phase 1

A Study Of PF-05212384 In Combination With Other Anti-Tumor Agents and in Combination With Cisplatin in Patients With Triple Negative Breast Cancer in an Expansion Arm (TNBC)

NCT01920061

COMPLETED Phase 1

Drug Interaction Study To Investigate The Potential Effect Of Proton Pump Inhibitor On The Pharmacokinetics Of Palbociclib (PD-0332991)

NCT01918176

COMPLETED Phase 1

A Study To Establish The Equivalence Of 2 Palbociclib (PD-0332991) Formulations To The Intended Final Market Product

NCT01906125

TERMINATED Phase 1

Multiple Dose Study Of PF-05231023 In Obese Adult Subjects

NCT01923389

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Phase Distribution

PhaseTrial count
Phase 1 703
Phase 2 470
Phase 3 411
Phase 4 93

What is open in the Pfizer pipeline

106 recruiting of 1,845 indexed (6% open); 1,335 completed (72%).

Phase mix: 504 late (III/IV) vs 1,173 early (I/II) (early-phase heavy).

Top condition: Healthy (44 trials), 9 others listed.

How open-pipeline share is computed

Recruiting share is recruiting_count divided by trial_count for this sponsor in the public registry export. Status can change between pulls; treat the figure as a research-attention snapshot, not product availability.

Pfizer: open-pipeline peers nationwide

Peers matched on 1,845 registered trials and 6% open enrollment, not the therapeutic-area sidebar.

Pfizer sits at or above the median trial volume and below the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot). 2×2 strategic matrix plotting 9 entities by Total trials (X) and Recruiting share (Y), with a crosshair dividing the plot into four quadrants. Higher volume & more openFocused & more openHigher volume, mostly closedSmaller & mostly closed 05001,0001,5002,000 5%10%15%20% Total trials Recruiting share PfizerMemorial Sloan Kettering Cancer CenterStanford UniversityDuke UniversityUniversity of California, San FranciscoPacira PharmaceuticalsBioDelivery Sciences InternationalColgate PalmoliveDurham VA Medical Center
Pfizer sits at or above the median trial volume and below the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot).

Pfizer sits at or above the median trial volume and below the median recruiting share among these 9 nationwide peers -- the two do not always move together.

Sponsors near 1,845 trials (± recruiting share)

Sponsors near 6% open enrollment (± trial volume)

What to do with this Pfizer page

1,845 registered trials is a research-attention snapshot, not an endorsement of Pfizer or any single study.

  • 106 of Pfizer's trials are currently recruiting, check each one's own eligibility criteria before contacting a site. Browse recruiting trials
  • Healthy is the condition Pfizer studies most, compare against other sponsors active in the same condition before evaluating a specific study. See Healthy trials
  • Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. Pfizer pipeline card: 1,845 registered trials from official public datasets. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.